7894138 has 16 divisors (see below), whose sum is σ = 13789440. Its totient is φ = 3319056.

The previous prime is 7894127. The next prime is 7894153. The reversal of 7894138 is 8314987.

It is a self number, because there is not a number n which added to its sum of digits gives 7894138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4578 + ... + 6061.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^7894138 is an apocalyptic number.

7894138 is a deficient number, since it is larger than the sum of its proper divisors (5895302).

7894138 is a wasteful number, since it uses less digits than its factorization.

7894138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10701.

The product of its digits is 48384, while the sum is 40.

The square root of 7894138 is about 2809.6508679905. The cubic root of 7894138 is about 199.1138965681.

The spelling of 7894138 in words is "seven million, eight hundred ninety-four thousand, one hundred thirty-eight".